Snapchat's IPO is ready for takeoff, and there's enough fuel for it to soar or burst into flames (SNAP)

After five years of enchanting its teenage users, the mobile app-maker will put on a show for the Wall Street crowd on Thursday when it begins trading as a public company.

Will parent company Snap's stock have a big first-day pop, in the style of other big internet IPOs?

Or will it take a nosedive, emulating Facebook's surprise fizzle a few years ago?

At its offering price of $17 a share, Snap is coming out with a valuation of $24 billion. That's a rich valuation for a company that lost half a billion dollars last year and which has only been generating significant revenue for one year.

But fundamentals may not matter much at a time when internet IPOs have been scarce and the overall market is at historic highs.

"Would I be surprised to see it double on the first day? Absolutely not," said one fund manager who believes the stock is actually overpriced but could benefit from strong sentiment in the short term.

"Investors know they're buying it at an insane valuation, but you're counting on the tape driving it higher," he said.

Eric Jackson, a hedge fund manager who is in the process of starting a new fund, says he wouldn't be surprised to see Snap's stock finish its first day in the low $20s, suggesting up to a 40% pop from the $17 IPO price.

"They’re trying to optimize the share price to attract a lot of long term capital," says Eric Kim, a managing partner and cofounder of Goodwater Capital. "I think they could’ve priced higher. Every communication was that it was $17 to $18."

"I think people will say Facebook is 16 times the size even at $24B and they’re saying they’re willing to take that bet that it’ll be that big in the future. I think there’s a lot of people willing to take that

The world's most popular social network went public in May 2012 on a wave of hype and exuberance. But things quickly veered off-script, with the stock finishing its first day of trading just 23 cents above its $38 offering price. In the weeks that followed, Facebook's stock lost 30% of its value.

"It will be interesting to see if the price holds through the

trades poorly, the IPO's lead underwriters — Goldman Sachs and Morgan Stanley — could have to buy a huge amount of Snapchat shares in the open market to create demand and stabilize the stock, Bressler said. Goldman Sachs won the coveted role of stabilization agent, putting it a position to prop the stock up if necessary.

"So the question is: if it trades poorly, to what extent are Goldman Sachs and Morgan Stanley willing to step up and buy as much stock as they need to. In the ca

Facebook's weak spot in its 2012 IPO was its lack of mobile advertising revenue, many investors point to Snap's slowing user growth as the red flag.

"The valuation implies that investors buy into the re-acceleration in user growth that is modeled by the underwriters. That is a bold assumption and requires major innovation by Snap," says Bressler.

Another hedge fund manager, who wished to remain anonymous, had a more blunt view, ascribing the demand to mutual fund "dumb money."

"It’s idiot money. Who would pay these kind of numbers for non-voting stock?"

Biz Carson contributed reporting.

Snapchat's IPO is ready for takeoff, and there's enough fuel for it to soar or burst into flames (SNAP)

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